Halifax Share Dealing

Has anyone got one of these account?If so please can you answer a few question as I have stuggle to get an answer from their website and advisor.

When I trade and select a few shares in different company say I want to buy 100 shares in 3 different company and sale 100 shares in 2 companys,will i be charged 11.95 * 5 (5 different companies make it individual transaction)?11.95 * 2 (1 buy transaction and 1 Sales transaction)?or will it be just 1 transaction?